Coke-oven or gas-furnace.



W. FEIGKS. 00KB OVEN OR GAS FURNACE.

APPLICATION, IIL'ED 001512, 1010.

1,051,875, Patented Feb. 4, 1913.

2 SHEETS-SHEET 1.

FIG. I.

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W. FEIGKS.

COKE OVEN 0R GAS FURNACE.

APPLICATION FILED OUT. 12, 1910. 1,051,875.

Patented Feb. 4, 1913.

2 SHBETSSHEET 2.

FIC-6 li wezafam 'f s @w WILLIAM EEICKS, 0F BETHLEHEM, NSYLVANIA.

COKE-OVEN GAS-FURNACE.

Specification 01 Letters Patent.

, Patented Feb. 4, 1913.

Application filed October 12, 1910. Serial No. 586,630.

To all whom it may concern; Be it known that 1, WILLIAM Fnrons, a subject of the Emperor of Germany, residing at Bethlehem, in the county of Northampton and State of Pennsylvania, have in vented new and useful Improvements in Coke-Ovens or Gas-Furnaces, of which the following is a specification.

The object of the present invention is to provide more 'eflicient, economical and simpler means for heating the air for com-* bustion in connection with coke ovens or gas furnaces. I

Ovens have been known in which a heating of the air is effected by conducting the latter through pipes which pass through an exhaust flue arranged beneath the oven, the hot gases passing through the flue horizontally while the air flows through the tubes vertically. Such method of heating the air, however, is for obvious reasons not economical and is disadvantageous in that the air is not uniformly heated allover the oven wall.

According to my invention I provide heating chambers set out with pipes or tubes similar to those described in the British .Patent No. 18,141/07, the whole, however, being so constructed and arranged that the flow of air and gas is opposed to each other, whereby an economical heat exchange of the air is effected. Furthermore, all tubes of the heat-exchange chambers being equally heated, a likewise uniform heating of the air all over the oven wall is obtained.

In an oven of my construction the air heating pipes communicate at their upper ends with the places-of combustion and at their lower ends with an air supply passage, while the heat-exchange chamber communicates at its upper end with the exhaust flue or fines of the oven wall and at its lower end with an exhaust passage. This arrangement may,-of course, be reversed and the pipes be connected at their upper ends tothe exhaust this or fines of the oven wall and at their lower ends to an exhaust passage while the heat-exchange chamber communicates at its upper end with the places of combustion and at its lower ends with an air supply passage. In the first case the 'air ascends through the tubes and the hot gases descend through the chamber, while in the latter case the air ascends through the chamber and the hot gases descend through the tubes.

In the accompanying drawings :Figure 1 is a longitudinal section through a furnace embodying my invention, taken along the line AB in Fig. 2. Fig. 2 is #1 section onthe line CI) in Fig.3. Fig. 3 is a section on the line E'F in Fig 2. Fig. 4 shows a longitudinal section through a furnace embodyingmy invention but differing in construction from thconc shown in Figs. 13, the plane of section being on the line G-I-I in Fig. 5. Fig. 5 is a section taken on the line I-J in Fi (i, and Fig. 6 isa section along the line I\L in Fig. 5.

Referring to Figs. 1 3, the coking chambers 1 are arranged side-by-sidc in the usual manner. The oven walls are provided with vertical heating tines, 2 indicating fines in which combustion is effected while 3 indicates the exhaust flucs.- The exhaust flues 3 communicate at the bottom by means of channels 4 with heat-ex:hangc chambers 5, the latter being connected at their lower ends by means of channels (5 with exhaust passages 7 which lead into the main conduits 8. The chambers 5 are set out with pipes or tubes 9 made of tire brick, fire clay or other refractory material. They communicate at their upper ends by means of channels 10 with the combustion lines 2 of the oven walls, and at their lower ends terminate into passages 11 which lead into the open. Slides 12 serve to regulate the 'amount of air admitted to the passages 11,

while the dampers 13 serve to regulate the chimney draft. 14 indi'atcs gas supply passages communicating with the combustion flues by means of channels 15.

Referring to Figs. 4-6, the construction of furnace here shown differs in some rcsp ects. from the one above described. As before, 1 denotes the coking chambers. 2 combustion flues, 3 exhaust flucs, lchanhels connecting the exhaust flucs with the heat exchange chambers 5, and (3 channels connecting the heat-exchange chambers with the exhaust passages 7 leading to the main con duits 8. The chambers here are also'set out with pipes or tubes 9 which, however, termi- 'nate at their upper end in collecting and dis'-,

. other numbers indicate same parts asin trated.

Figs. '13.

' The operation of the furnace is as follows :-The fresh air enters the passages 11 at the front and backof the battery. The. air in these passages is subjected to a pre-,

heating by the exhaust passages 7 .and then ascends through the tubes 9, to be delivered either direct into the combustion fines by,

the channels 10, (see Figs. 1-3) or into the collecting and distributing chambers '16 and from there into the combustion flues 2, (see Figs. 16). In the combustion flues Q the air mixes with the gas, which is delivered by means of the passages 1 k, and channels 15. The products of combustion pass upward in fines '2 and down Descending through the chambers greatest part of the hot gases is transmitted to the air ascending through the tubes, the waste gases leaving the chambers at the bottom by the channels 6 to enter the passages are conducted to the main conduits 8 which are connected with the chimney. v

In the furnace illustrated in Figs. 46, the construction of air heating chambers is entirely independent upon the arrangement of the heating fines in the oven walls, which may be of any different kind than illus- Another advantage of this construction is-that the number-of air heating tubes can be increased as desired, thus making it possible to obtain a very eflicient heating of the air.

It is evident that various changes. may be made which may come Within the scope of my invention, and I sire to be limited in every way to the exact constructions shown and described.

For convenience of description and designation of the structural features in the claims, I have employed and set forth in the claims the terms of the parts and-their relative arrangement as described in the specification, but, of course, either of the arrangements disclosed in the specification or their equivalents may be used without departing from the spirit and scope pt my invention.

Having thus described the invention, I claim 1. In combination, a series of coking ovens having combustion and exhaust lines in the oven walls, a series of waste gas chambers arranged below the battery of the fines 3 through the channels 4 into the chambers 5. l the;

heat contained in the.

7 from whence they do not, therefore, de-

ends with tween these latter and the lower ends of said waste gas chambers, and a series of air supply passages in proximity to the lower ends of said waste gas chambers and longitudinally to same and connections interposed along said air supply passages between these latter and forming communication with the lower ends of aforesaid air preheating pipes, and the air supply passages;

. 2. In combination, a series of coking ovens having vertical combustion and ex haust fines arranged in the oven walls, the exhaust flues beingalternately interposed between the combustion tlues, a series 0' waste gas chambers communicating with the exhaust flues throughout the upper endsthereof and. arranged below the battery of ovens, a series of vertical air preheating pipes passing through said waste gas chambers, passages for supplying gas to said combustion flues,'a series of horizontal exhaust passages at the lower ends ofv said waste gas chambers and longitudinally to same and connections interposed along said exhaust passages between these latter and the lower ends of said waste gas chambers,

and a series of horizontal air preheating inlet passages arranged altcrnately between the horizontal exhaustpassages, and connections along said air preheatinginlet passages between these latter and aforesaid air pipes, forming communication with the lower ends of said air pipes and said air pie-heating inlet passages.

3: In combination, a series of coking ovens havingcombustion and exhaust fines in the walls hereof, a series of waste gas chambers arranged below the battery of ovens and communicating with said exhaust lines throughout their upper ends, a series of upright air preheating pipes passing through said waste gas chambers and terminating at their upper ends into common passages extending beneath the ovens and communicating with said combustion flues, a series of exhaust passages in proximity to the lower ends of said waste gas chambers and longitudinally to same, and connections interposed along said exhaust passages tween the latter and the lower ends of said waste gas chambers and a series of air sup- 1 ply passages in proximity to the lower ends of said waste gas chambers and longitudi- In testimony whereof I aflix my signature nolly to same, and connections along said in presence of two witnesses. an supplypassagesbetween the latter and YVILLIAM FEICKS the lower ends of aforesaid air preheating J p1pes forming communication with the ..Witnesses:

loworends of said air pipes and said air pre- K. ALLEN,

heatin'g'inlet passages. BENNETT S. JONES.

lioploa'rizf this patent may be obtained foi five cents each, by addressing the Commissioner of Patents,

' Washington, D. O. 

